dvdwizard_common: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/dvdwizard_common - from package: dvdwizard

You may install the required package with command apt-get install {package}

Error in other languages:
dvdwizard_common: bevel nie gevind nie
dvdwizard_common: comandă negăsită
dvdwizard_common: comando não encontrado
dvdwizard_common: commande introuvable
dvdwizard_common: command not found
dvdwizard_common: käsku ei ole
dvdwizard_common: không tìm thấy lệnh
dvdwizard_common: komanda nerasta
dvdwizard_common: Kommando nicht gefunden.
dvdwizard_common: kommandot finns inte
dvdwizard_common: komut yok
dvdwizard_common: nie znaleziono polecenia
dvdwizard_common: níor aimsíodh an t-ordú
dvdwizard_common: no se encontró la orden
dvdwizard_common: no s'ha trobat l'ordre
dvdwizard_common: opdracht niet gevonden
dvdwizard_common: parancs nem található
dvdwizard_common: perintah tidak ditemukan
dvdwizard_common: príkaz nenájdený
dvdwizard_common: příkaz nenalezen
dvdwizard_common: команда не найдена
dvdwizard_common: командата не е открита
dvdwizard_common: 命令找不到
dvdwizard_common: コマンドが見つかりません